Currently A-MPDU aggregation parameters are not being configured
during peer association for 6 GHz band. Hence, extract these
parameters from station's capabilities received in association
request and send to firmware. Without this, A-MPDU aggregation
is not happening in 6 GHz band.
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
Co-developed-by: Avula Sri Charan <quic_asrichar@xxxxxxxxxxx>
Signed-off-by: Avula Sri Charan <quic_asrichar@xxxxxxxxxxx>
Signed-off-by: Pradeep Kumar Chitrapu <quic_pradeepc@xxxxxxxxxxx>
Acked-by: Jeff Johnson <quic_jjohnson@xxxxxxxxxxx>
---
drivers/net/wireless/ath/ath12k/mac.c | 57 ++++++++++++++++++++++++++-
1 file changed, 56 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
index 830f35fb89fe..8836dc67f7e0 100644
--- a/drivers/net/wireless/ath/ath12k/mac.c
+++ b/drivers/net/wireless/ath/ath12k/mac.c
@@ -2032,6 +2032,60 @@ static void ath12k_peer_assoc_h_he(struct ath12k *ar,
}
}
+static void ath12k_peer_assoc_h_he_6ghz(struct ath12k *ar,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta,
+ struct ath12k_wmi_peer_assoc_arg *arg)
+{
+ const struct ieee80211_sta_he_cap *he_cap = &sta->deflink.he_cap;
+ struct cfg80211_chan_def def;
+ enum nl80211_band band;
+ u8 ampdu_factor, mpdu_density;
+
+ if (WARN_ON(ath12k_mac_vif_chan(vif, &def)))
+ return;
+
+ band = def.chan->band;
+
+ if (!arg->he_flag || band != NL80211_BAND_6GHZ || !sta->deflink.he_6ghz_capa.capa)
+ return;
+
+ if (sta->deflink.bandwidth == IEEE80211_STA_RX_BW_40)
+ arg->bw_40 = true;
+
+ if (sta->deflink.bandwidth == IEEE80211_STA_RX_BW_80)
+ arg->bw_80 = true;
+
+ if (sta->deflink.bandwidth == IEEE80211_STA_RX_BW_160)
+ arg->bw_160 = true;
+
+ if (sta->deflink.bandwidth == IEEE80211_STA_RX_BW_320)
+ arg->bw_320 = true;
+
+ arg->peer_he_caps_6ghz = le16_to_cpu(sta->deflink.he_6ghz_capa.capa);
+
+ mpdu_density = u32_get_bits(arg->peer_he_caps_6ghz,
+ IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START);
+ arg->peer_mpdu_density = ath12k_parse_mpdudensity(mpdu_density);
+
+ /* From IEEE Std 802.11ax-2021 - Section 10.12.2: An HE STA shall be capable of
+ * receiving A-MPDU where the A-MPDU pre-EOF padding length is up to the value
+ * indicated by the Maximum A-MPDU Length Exponent Extension field in the HE
+ * Capabilities element and the Maximum A-MPDU Length Exponent field in HE 6 GHz
+ * Band Capabilities element in the 6 GHz band.
+ *
+ * Here, we are extracting the Max A-MPDU Exponent Extension from HE caps and
+ * factor is the Maximum A-MPDU Length Exponent from HE 6 GHZ Band capability.
+ */
+ ampdu_factor = u8_get_bits(he_cap->he_cap_elem.mac_cap_info[3],
+ IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK) +
+ u32_get_bits(arg->peer_he_caps_6ghz,
+ IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP);
+
+ arg->peer_max_mpdu = (1u << (IEEE80211_HE_6GHZ_MAX_AMPDU_FACTOR +
+ ampdu_factor)) - 1;
+}
+
static void ath12k_peer_assoc_h_smps(struct ieee80211_sta *sta,
struct ath12k_wmi_peer_assoc_arg *arg)
{
@@ -2504,6 +2558,7 @@ static void ath12k_peer_assoc_prepare(struct ath12k *ar,
ath12k_peer_assoc_h_ht(ar, vif, sta, arg);
ath12k_peer_assoc_h_vht(ar, vif, sta, arg);
ath12k_peer_assoc_h_he(ar, vif, sta, arg);
+ ath12k_peer_assoc_h_he_6ghz(ar, vif, sta, arg);
ath12k_peer_assoc_h_eht(ar, vif, sta, arg);
ath12k_peer_assoc_h_qos(ar, vif, sta, arg);
ath12k_peer_assoc_h_phymode(ar, vif, sta, arg);
@@ -8690,7 +8745,7 @@ static int ath12k_mac_hw_register(struct ath12k_hw *ah)
ieee80211_hw_set(hw, SUPPORTS_TX_FRAG);
ieee80211_hw_set(hw, REPORTS_LOW_ACK);
- if (ht_cap & WMI_HT_CAP_ENABLED) {
+ if ((ht_cap & WMI_HT_CAP_ENABLED) || ar->supports_6ghz) {
ieee80211_hw_set(hw, AMPDU_AGGREGATION);
ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW);
ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER);
--
2.17.1
